package com.atguigu.common.valid;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

/**
 * @author xiaoxiaokui
 * @date 2020/7/2
 */
public class ListValueConstraintValidator implements ConstraintValidator<ListValue, Integer> {

    private Set<Integer> set = new HashSet<>();

    // 初始化方法
    @Override
    public void initialize(ListValue constraintAnnotation) {
        int[] vals = constraintAnnotation.vals();
        if (null != vals && vals.length > 0) {
            for (int val : vals) {
                set.add(val);
            }
        }
    }

    /**
     * @Description: 判断是否校验成功
     * @Param: value 需要校验的值
     * @Param: context
     * @return: boolean
     * @Author: xiaoxiaokui
     * @Date: 2020/7/2
     */
    @Override
    public boolean isValid(Integer value, ConstraintValidatorContext context) {
        return set.contains(value);
    }
}
